氯化钠-二乙基二硫代氨基甲酸钠-丙醇体系萃取分离铜  

The Liquid Liquid Extraction Behaviour of Copper(Ⅱ) Based on Sodium Chloride Sodium Diethyldithiocarbamate n Propanol System

作　　者：李全民[1] 张丽敏[1] 刘奇[1] 郭金枝 

机构地区：[1]河南师范大学化学系

出　　处：《分析试验室》1999年第2期20-23,共4页Chinese Journal of Analysis Laboratory

基　　金：河南省科委;自然科学基金

摘　　要：研究了氯化钠－二乙基二硫代氨基甲酸钠－丙醇体系萃取铜的行为及丙醇水溶液分相条件的选择。实验表明，丙醇作为萃取溶剂，能萃取中性螯合物。在ＥＤＴＡ存在下，调节ｐＨ５～ｐＨ１０，该体系能使Ｃｕ２＋从常见元素Ｆｅ３＋、Ｃｏ２＋、Ｎｉ２＋。In this paper,the liquid liquid extraction behaviour of the chelate of copper(Ⅱ) with sodium diethyldithiocarbamate based on sodium chloride sodium diethyldithiocarbamate n propanol system was investigated and the proper conditions of phase separation of n propanol and water were selected.The quantitative extraction separation of Cu 2+ from Fe 3+ ,Co 2+ ,Ni 2+ and Al 3+ was carried out by adding 1.0mL of 0.001mol/L EDTA as the masking agent to 10mL 30%( V/V ) n propanol solution at pH 7.0 .The separation results are satisfactory.

关 键 词：铜 二乙基 二硫代氨基 甲酸钠 丙醇 萃取 分离 

分 类 号：O614.121[理学—无机化学]